No authors listed. Communicable Diseases Intelligence volume 17 issue 22 - 1 November 1993 - whole issue. Commun Dis Intell (2018) [Internet]. 1993 Nov. 1 [cited 2026 Apr. 11];17:502-27. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2869